Method of securing bung bushings



Fb. 9, 1-931. J, 0, BLACK 2,069,937,

METHOD OF SECURINGBUNG Busames iled Aug. 7, 1933 v l 24 2.? 2a

i ea 65 INVENTOR Patented Feb. 9, 1937 UNITED STATES PATENT OFFICE 3Claims.

The present invention pertains to a method of securing'bung seat orbushing in a barrel wall and is particularly adapted for assembling bungbushings in double walled metal barrels or containers for the purpose ofproviding a bung opening through which the barrel or container may befilled with a beverage or through which the beverage may be removed, andmeans for receiving or seating a bung or stopper for sealing the barrelor container.

In metal barrels of conventional construction an inner container issurrounded by an outer, protective wall, sufiiciently strong and durableto stand considerable rough usage. A bung bushing ordinarily extendsthrough the outer wall and into the inner container for the purpose ofre-- ceiving and seating a bung to seal the inner con: tainer. When itis desired to remove the bung, the ordinary procedure is to drivethesame through the bushing into the barrel by blows with a hammer ormallet.

' The primary object of the present invention is.

formed of aluminum and the outer wall is formed of steel. In suchconstruction it is desirable to join the bushing, which is formed ofaluminum, to the inner aluminum wall by welding, and this inventionprovides a method of assembling the bushing in the steel wall wherebyitssupport will be. suificientlystrong to support the bushing so thatwhen blows areimparted to a bung therein the shocks of such blows arenot imparted to the aluminum wall. Aluminum linings are desirable inbarrels for containing such beverages as beer because they can be easilycleaned with steam, the metal does not spoil the taste of the beer, thealuminum will not rust, and necessity for pitching the barrels iseliminated.

With the above and other ends in view the invention consists in mattershereinafter set forth and more particularly pointed out in the appendedclaims, reference being had to the accompanying drawing, in which-Figure 1 is a top plan view of the present bush- (ores-148.2)

ing, illustrating a fragment of a barrel wall in which it is mounted;

section taken on line Fig. 7 is a section of a bung bushinghaving aBetween the screwthreaded portion 2 and the flange 3 is formed acircumferentially extending groove 4. The numeral 5 designates the innerwall or lining of a barrel, this wall or lining preferably being formedof aluminum. Thebushing I is also .formed of aluminum and the integralflange 3 thereon is received'in an opening 3 in the inner wall or lining5. The flange 3 is welded to the wall or lining 5 as indicated at I.

An outer, protectivewall, preferably formed of steel in order to providestrength and durability, is formed in two sections 8 and 9 havingsemicircular grooves III and II respectively in their meeting edges...The two sections 8 and 9 are united by welding along the seam l2 whilethe edges of the recesses l0 and l l project into the groove 4. Thediameter of the circular opening, formed by uniting the. two sections 3and 3 and the complemental recesses, is smaller than the diameter of thescrewthreaded part 2 and the 5 may be filled with insulating materialsuch as" cork or it may be filled with air. This space is sealed aroundthe bushing l by a gasket or sealing ring I4 which is interposed betweenwall sections 8 and 9 and a washer I5. 'A ring nut i6 is received on thescrewthreaded portion 2 and is tightened to compress the sealing ring H.Prior to screwing on the nut li the screwthreaded portion 2 is coatedwith a compound which prewardly extending rim-flange 22. The rim-flange22 extends into an opening.23 in an inner wall or lining 24 of a doublewalled barrel or container, the lining preferably being formed ofaluminum. The bushing 20 is also formed of aluminum and the flange 22 iswelded in the opening 23 as designated at 25. An outer wall 26,preferably formed of steel, is provided with an opening 21 through whichthe bushing 20 extends. Surrounding the outer wall 26 is a band 28having its meeting edges welded together along the seam 29. The meetingedges of the band are formed with complemental semi-circular grooves 30.which combine to form a circular opening encircling the bushing 'andreceived in a circumferentially ex tending groove 3| in the bushing. Theband 28 is then welded to the outer wall 26.

Placed over the bushing 20 is a sealing ring 32.upon which rests awasher 33, and a ring nut 34 is screwed on the threaded portion of thebushing to compress the sealing ring 32. The nut 34 is preferablysecured in its tightened position to positively prevent removal thereof.

The descriptive matter relating to Figs. 3 and 4 is illustrative of theapplication of the present method of assembling a hung bushing in abarrel having an opening in the outer wall through which the bungbushing extends, the latter being supported in a reinforcing band sothat shocks received by the bushing are carried by the band withoutimparting the same to the lining wall.

In Fig. 5 the numeral designates an inner wall or lining having anopening receiving a flange 4| on a bushing 42. Both the bushing andlining 40 'are preferably formed of aluminum. The lining 40 and flange4| are welded together as designated at 43. An outer steel wall 44 has adepressed portion 45 formed with an opening 46 through which the bushing42 extends. The portion 45 of the wall 44 rests upon the top of theflange 4| and has a sealing ring 41 resting on the I top thereof.Engaging the sealing ring 41 is a washer 48 which is engaged by-a nut 49on the screwthreaded end 50 of the bushing. By tightening the nut 49 thesealing ring 41 and wall portion 45 are tightlvinterposed between theflange .4! and washer 48.

This disclosure illustrates the application of the present invention toa barrel having an opening in the outer wall thereof and for supportingthe bushing so as to relieve the lining 40 of any shocks. In thisparticular instance the wall 44 is illustrated as having a rubbercovering 5!.

In Fig. 6 the method of assembling the bushing is the same as disclosedin Figs. 1 and 2 with a slight modification in that the outer wallsections are depressed. adjacent the semi-circular recesses therein toprovide a wedge shaped surface 60 for compressing the sealing ring Iinwardly at the same time it is compressed downwardly by the washer 62and nut 63. In this instancethe bushing 64 which receives the nut 63 isalso formed ing in an aluminum lining 66. The outer wall sections aredesignated at 1 and'project' into a circumferentially extending groove68. With the exception of the wedge surface this disclosure is identicalwith Figs; 1 and 2 which are described in greater detail.

From the foregoing it becomes apparent that the present inventionprovides method of mounting a hung bushing in a double walled barrel, orin other words, a barrel having an aluminum lining, so that shocksreceived by the bushing are not imparted to the lining. Furthermore, itbecomes apparent that the present method provides for mounting a bungbushing in any double walled container, and it is equally'applicable formounting in the side or the head of a barrel.

In Fig. 7 there is illustrated an aluminum bung bushing 10 constructedto be welded to an aluminum lining and to be attached to the steel outerwall according to the method set for th above.

The bushing 10 is internally threaded as at H to 4 receive an externallythreaded tap bushing I2. The tap bushing 12 has a spindle 13 providedwith a central opening 14 and an interrupted flange 15 for attachment ofa tapping apparatus thereto in the manner'well known in the art.

Although specific embodiments of the present invention have beenillustrated and described it is to be understood that various changesmay be I, made within the scope of the appended claims ings extendinginto the groove.

2. The method of securing a bushing in a wall which consists inproviding the bushing with a groove, forming said wall in two parts andproviding the meeting edges thereof with complemental recesses, drawingthe two parts together and causing the part of the wall immediatelyadjacent the recesses to enter the groove in the bushing, and integrallyuniting the two parts of the wall.

3. The method of securing a bushing in a wall which consists inproviding the bushing with a groove, forming a pair of plates withcomplemental openings, uniting said plates while holding the part.thereof immediately adjacent the recesses in the grooves in saidbushing, providing a wall .with an opening therein, and securing saidplates to said wall with the end of the bushingin said opening.

JOHN OLIVER BLACK.

